.container{
  width: 1200px;
  margin: 50px auto;
}
.container .course-tab{
  width: 1200px;
  height: 52px;
  background-color: #f5f5f5;
  border: 1px solid #eee;
  margin-bottom: 20px;
  padding-left: 30px;
  box-sizing: border-box;
}
.container .course-tab .tab-item{
  float: left;
  height: 50px;
  margin-right: 40px;
  line-height: 50px;
}
.container .course-tab .tab-item-lk{
  font-size: 14px;
}
.container .course-tab .tab-item-lk.lk-current{
  color: #167ed9;
}
.container .list-wrapper .course-card-list{
  width: 1225px;
  margin-left: -17px;
}
.container .list-wrapper .card-item{
  float: left;
  width: 236px;
  height: 221px;
  margin: 0 0 20px 9px;
  padding: 7px 7px 10px;
  border: 1px solid transparent;
  box-sizing: border-box;
}
.container .list-wrapper .card-item:hover{
  border-color: #ddd;
  box-shadow: 1px 2px 3px #ddd;
}
.container .list-wrapper .card-lk{
  display: block;
  height: 124px;
  margin-bottom: 6px;
}
.container .list-wrapper .card-item .item-status{
  position: absolute;
  width: 220px;
  height: 24px;
  line-height: 21px;
  margin-top: -30px;
  padding-left: 5px;
  background-color: rgba(0, 0, 0, .7);
  box-sizing: border-box;
}
.container .list-wrapper .card-item .item-status-step{
  color: #fff;
  font-size: 12px;
}
.container .list-wrapper .card-item .item-tt{
  margin-bottom: 8px;
}
.container .list-wrapper .card-item .tt-lk{
  font-size: 14px;
}
.container .list-wrapper .card-item .item-line{
  height: 22px;
  line-height: 22px;
}
.container .list-wrapper .card-item .line-cell.item-price{
  color: #e85308;
  font-style: 16px;
}